20219778

素因数分解:

$2^1\times 3^2\times {\mathrm{643}}^1\times {\mathrm{1747}}^1$

素因数の和:2398

約数の個数: 24

約数和(自身を含む): 43902768

約数和(自身を除く): 23682990

約数列:

[1, 2, 3, 6, 9, 18, 643, 1286, 1747, 1929, 3494, 3858, 5241, 5787, 10482, 11574, 15723, 31446, 1123321, 2246642, 3369963, 6739926, 10109889, 20219778]

約数ペア:

[(1, 20219778), (2, 10109889), (3, 6739926), (6, 3369963), (9, 2246642), (18, 1123321), (643, 31446), (1286, 15723), (1747, 11574), (1929, 10482), (3494, 5787), (3858, 5241)]